doctype
html(lang="en")
    head
        meta(name="viewport", content="width=device-width, initial-scale=1.0")
        meta(http-equiv="Content-Type", content="text/html; charset=UTF-8")
        title Transition
        link(rel="stylesheet", type="text/css", href="demo.css")
    body
        a#timings-demo-btn click
        #timings-demo
            #ease.demo-box Ease
            #ease-in.demo-box Ease-in
            #ease-out.demo-box Ease-out
            #ease-in-out.demo-box Ease-in-out
            #linear.demo-box Linear
            #cubic-bezier.demo-box Cubic-bezier
